Description: A word is a function with a zero-based sequence of integers as domain. (Contributed by Alexander van der Vekens, 13-Apr-2018)
Ref | Expression | ||
---|---|---|---|
Assertion | wrdfn | |- ( W e. Word S -> W Fn ( 0 ..^ ( # ` W ) ) ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wrdf | |- ( W e. Word S -> W : ( 0 ..^ ( # ` W ) ) --> S ) |
|
2 | 1 | ffnd | |- ( W e. Word S -> W Fn ( 0 ..^ ( # ` W ) ) ) |